Indoor positioning global positioning system receiver and correlator channel design method thereof

Abstract

The invention relates to a global positioning system (GPS) receiver technology, in particular to an indoor positioning GPS receiver and a correlator channel design method thereof which are mainly used in the positioning and navigation of a high sensitivity navigation receiver under indoor environment. The receiver mainly comprises a radio frequency module, a navigation data processing module and a correlator channel, wherein the correlator channel at least comprises parallel acquisition correlator channels and a correlator interface controller module, etc. The method realizes the technical characteristic that the receiver is of double mode inside two systems at the same time through adopting the design method of a double mode correlator channel; moreover, the method mainly solves relevant technical problems that how does overall hardware realize double mode characteristic inside two systems, etc. The receiver and the method have the advantages that: the receiver is capable of receiving weak indoor navigation signal and is of double mode operating characteristic inside two systems, thereby increasing locating precision along with quickness and high sensitivity and reducing hardware resource cost and power consumption, etc.

Description

technical field [0001] The invention relates to a GPS (Global Position System) receiver technology, in particular to a positioning and navigation and a correlator channel design method of a high-sensitivity navigation receiver mainly used in an indoor environment. Background technique [0002] In the AGNSS (Assisted Global Navigation Satellite System) system, the navigation message that the traditional receiver needs to be synchronized to be demodulated can be obtained from the auxiliary information, and using the position of the reference receiver, the high-sensitivity receiver only needs to Positioning can be achieved by capturing satellite signals. Therefore, the capture and detection of weak satellite signals becomes the key to the realization of high-sensitivity receivers. [0003] The detection of weak satellite navigation signals not only needs to use the spread spectrum gain, but also requires long-term accumulation, the integration time is prolonged, and the requir...

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is: aiming at the requirement of high-precision positioning in the indoor area, it mainly solves the hardware design problem of the correlator channel of the high-sensitivity satellite navigation receiver; Solve the problem of how to achieve fast and high-sensitivity positioning with large-scale parallel correlators; solve the disadvantages of increased hardware resources and increased power consumption; solve related technical issues such as how to improve sensitivity indicators and achieve faster and more accurate positioning

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